Coal-jig.



G. E. REYNOLDS.

COAL JIG.

APPLICATION FlLED APR.20, 1915 LWQWS. Patented Dec. 28, 1915.

W 2SHEETS-SHEET l.

jZ if Witnesses G. E. REYNOLDS;

COAL 1m.

APPLICATION FILED APR. 20, 19'5- I 1 16 7.. Patented Dec. 28, 1915.

' 2 SHEETS-SHEET 2- Q Q 00 03020 0 Q 0 0 o o *if V4 o j 25 fwz Z5 m o 0O O O O 0 0 0 0 0 0 0 O O O Witnes'se a Attorneys ran stares PATENT@FFTQE,

GEORGE EDMOND REYNOLDS, OF WYOMING, PENNSYLVANIA, ASSIGNOR OF ONE-THIRDT0 WILLIAM H. BROWN, 0]? WYOMING, PENNSYLVANIA, AND ONE-THIRD TO FRANKNOWAK, OF EXE'IER, PENNSYLVANIA.

' coAL-JIe.

LEMLWM.

Specification of Letters Patent.

Application filed April 20, 1915. Serial No. 22,626.

To all whom it may concern."

Be it known that I, GEORGE E. REYNOLDS, a citizen of the United States,residing at Wyoming, in the county of Luzerne and State of Pennsylvania,have invented a new and useful Coal-Jig, of which the following is aspecification.

The present invention appertains to coal jigs, such as are employed forwashing coal and separating the same from rock and slate by gravity, oneof the objects of the invention being the provision in a coal jig, of anovel and improved screen or grate to enhance the eflic'iency andcapacity of the jig in separating the coal from the rock and slate.

Another object of the invention is the provision of means forautomatically discharging the refuse, such as rock and slate, whensuflicient rock and slate has accumulated at the refuse outlet, andwhich will eliminate the necessity for an attendant manually opening therefuse gate as is now the custom, and which will also increase theefficiency of the jig by preventing the excessive accumulation of rockand slate therein.

It is also within the scope of the invention to provide the improvedfeatures above noted which can be readily embodied in present day coaljigs, without prohibitive expense and trouble, and whereby the utilityand efficiency of the jig will be materially increased.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope ,of what is claimed without departing from the spirit of theinvention.

The invention is illustrated in the accompanying drawings, whereinFigure 1 is a vertical section of a coal jig embodying the improvements,portions be ing broken away. Figs. 2 and 8 are sectional views taken onthe lines 22 and 8-3, respectively, of Fig. 1. 4

in the drawings. there is illustrated a ig which is known in the tradeas a Reading jig, having the improved features embodied therein. he jigcomprises a tank 1 having a partition 2 therein, and a plunger 3operating at one side of the partition 2 for forcing the water upwardlyand downwardly through the screen or grate 4 between the partition 2 andside wall of the tank opposite the plunger.

The screen or grate 4 is of special con struction, to facilitate theseparation of the coal from the slate and rock, and to increase thecapacity of the jig. Thus. the screen 4 comprises a lower inclined step5 having the lower perforated portion (3 and the upper perforatedportion 7. The screen at embodies a second or upper step 8 which isperforated, and which is arranged at a slightly less angle ofinclination than the lower step A perforated or apertured riser 9 isdisposed between the adjacent edges of the steps 5 and 8, and a plate 10is secured to the partition and to the adjacent edge of the step 8. Thestep 8 is arranged adjacent but spaced from the partition 2, while thelower step 5 is attached to that side wall of the tank remote from thepartition 2. The steps 5 and S, riser 9,

and plate 10 are suitably secured to the walls of thetank. The plate 10is provided between its edges with an obtuse angled bend l1 and withperforations 12 below the bend, a wear strip 13 being secured upon theplate 10 above the angle for preventing the coal, rock and slate fromwearing or inj uring the plate 10 when the same drops into the jig.

A partition or deflector 14 is secured within the tank 1 adjacent thepartition '2 above the. step 8, the lower edge of the partition ordeflector 14 being spaced above the step 8 and being arrangedcomparatively close to the said step and plate 10. The chute 15 whichdischarges the coal as it comes from the mine extends over the partition2 to discharge the coal into the hopper or space be tween the partitions2 and 14, and whereby the coal will flow under the partition 1% onto thestep 8 of the screen or grate.

That side wall of the tank 1 adjacent the lower edge of the step 5 isprovided with :1

discharge opening 15 for the rock and slate immediately above the loweredge of the screen 4 or the step 5 thereof, and the usual conveyertrough 16 has its lower end conmeenre' nected to the tank to communicatewith the outlet opening 15, a suitable rock and slate conveyor 17working within the trough 16 to carry the rock and slate upwardly. Therespective side wall of the tank is provided above the outlet opening 15with a coal outlet opening 18, and a coal trough 19 is attached. to thetank to communicate with theopening 18, a suitable conveyer 20 workingwithin the trough 19 and extending partially into the tank above thescreen and refuse outlet opening.

The means for enabling the rock and slate to be automaticallydischarged, includes a wing gate 21 hinged, as at 22, to the respectivewall of the tank at the upper edge of the refuse outlet 15, and a wing23 is hinged, as at 24:, to the respective wall of the tanli: above theopening 15 and gate 21. The wing 23 is relatively larger than the gate21, and is arranged. to swing into the step 5 of the screen over theperforated portion 6 thereof for acting as a secondary gate. The gate2i. is operatively connected to the wing 23, and to this end a stem 25is engaged throu h the tree portion of the wing 23 and is adjustablyengaged thereto means of a pair of nuts 26 threaded upon the stem 25 andclamping the wing, a link 27 being terminally pivoted to the gate 21 andstem 25 so that the gate and wing swing simultaneously. ll hen the gate21 is closed so as to depend within the outlet opening 15, the wing 23is swung upwardly up oil of the step 5 so that the lower or free edge ofthe wing 23 is spaced above the median line between the perforatedportions 6 and 7 of the step 5.

A means is employed for normally holding the wing 23 raised and the gate21 closed, and to this end a rod 28 having its lower end secured to thewing 23, has its upper end connected by means of a link 29 to one end ofa lever 30 fulcrumed to a hanger or other suitable support 31, a weight32 being adjustable upon the other arm of the lever 30. The weight 32 inswinging the respective arm of the lever 36 downwardly will raise thelink 29 and bar 28 to raise the wing 23 and swing the gate 21 inwardlyto closed position, and the weight 32 will overbalance the rock andslate which. gravitates down the step 5 below the wing 23 and bearsagainst the gate 21, until suflicient rock and slate has gravitatedbelow the wing 23 to force the gate 21 open.

In operation, the tank 1 is partially filled with water in. the usualmanner, and the plunger 3 is reciprocated vertically tor forcing thewater upwardly and downwardly through the screen or grate -1- forwashing the coal, and serving to work the coal, which has a. lowerspecific gravity than the rock and slate, to the top. The coal which isdischarged from the chute 15 will drop onto the wear strip 13 and willbe deflected thereby over the apertured portion or riser 12 of the plate10 onto the perforated or apertured step 8. The coal and refuse willgravitate along the step 8, and when it reaches the riser or offset 9,the coal and refuse will drop over the riser or ollset, and which inconnection with the action of the will enable the coal to be workedupwardly in a much easier and better manner than with the use of anordinary straight inclined screen or grate. The coal is worked upwardlyover the wing 23 and is taken up by the conveyer or elevator 20, whilethe rock and slate which settle by gravity under the win 23 willaccumulate below the wing will bear against the gate 21. l fhensufiicient rock and slate has accumulated below the wing 23 to force thegate 21 open, assisted by the pressure of the coal upon the wing 23, toover-balance the weight 32, the gate 21 will be forced open to allow theslate and roclr to run into the trough 16 to be carried upwardly by theconveyor or elevator 17. When the gate 21 is opened, the wing 23 will beswung downwardly against the perforated portion 6 of the step .5, forpreventing coal and refuse from passing underthe wing until the partshave again resumed their normal positions. when the rock and slate aredischarged from under the wing 23 through the refuse outlet opening 15',the weight or pressure upon the gate being relieved, will allow the wingand gate to swing back to normal positions under the influence of theweight 32. The wing and gate are thus yieldably held in normal position,and the gate is arranged to be automatically opened by the rock andslate, and this will eliminate the necessity of the attendant manuallyopening the refuse gate as is ordinarily the custom, and which requiresconsiderable time in observing and operating the refuse gates ofordinary jigs;

lt will be noted that the screen or gate instead of lying in a singleplane as ordinarily, is stepped or offset opposite the refuse outletopening, and at a suitable distance in advance oi the wing 23, wherebythe coal and refuse will be separated properly before reaching the freeedge of the wing 23. The construction of the screen or grate 4 willmaterially increase the'eiliciency and capacity of the jig. A salientfeature of the invention resides in the means whereby the rock and slateis automatically discharged, and this means-operating to discharge therock and slate free from coal, and whereby the jig will operate toseparate the refuse from the coal sufficiently to paw inspection at" orbelow the percentage allowed. In the present structure, the coal, rockand slate in entering the jig will fall onto the upper strip 8 at a hiher jigging level than in ordinary jigs, an whereby a ldll mes es largerfall of the coal and refuse is obtained before reaching the outlets orexits, enabling the coal to be separated from, the slate and rock morereadily and with less jigging than in ordinary jigs. Since the refusedischarge means operates automatically, to close the refuse gate as soonas the rock and slate is discharged, the accidental discharge of coalinto the refuse trough is prevented, this frequently happening inordinary jigs, since the attendant must use his judgment as to how longto open the refuse gate, and this not infrequently results in the refusegate being held open too long so as to allow coal to be discharged intothe refuse trough.

From the foregoing, taken in connection with the drawings, it isbelieved that the other advantages and attributes of the presentinvention will be obvious to those skilled in the art,

Having thus described the invention,what is claimed as new is:

1. In a jig, a tank, an inclined screen therein, one wall of the tankhaving a refuse outlet at the lower portion of the screen, a

normally closed gate for said opening, a

wing hinged to said wall above said gate and arranged to swing towardthe screen, and means for normally holding the gate closed and the wingraised and adapted to yield for allowing the gate to open and the wingto swing downwardly toward the screen. i

2. In a jig, a tank, an inclined screen therein, one wall of the tankhaving a refuse outlet at the lower portion of the screen, a normallyclosed gate for said opening, a wing hinged to said wall above said gateand arranged to swing toward the screen, means connecting the gate andwing, and yieldable means connectedto the wing for normally holding thesame raised and the gate closed. I

3. In a jig, a tank, an inclined screen therein, one wall of the tankhaving a refuse outlet at the lower portion of the screen, a gate hingedto said wall to depend within the outlet for normally closing the same,a wing hinged'to said wall above said gate and adapted to swingdownwardly onto the screen, a link connecting the gate and wing, andyieldable means for normally raising the wing off of the screen andswinging the gate closed.

4. In a jig, a tank, an inclined screen therein, one wall of the tankhaving a refuse outlet at the lower portion of the screen, a gate fornormally closing said outlet, a wing hinged to said wall above the gateand adapted to swing downwardly onto the screen, and means operativelyconnecting the gate and wing whereby when the gate is opened, the wingis swung downwardly against the screen.

5. In a jig, a tank, an inclined screen therein, one wall of the tankhaving a refuse outlet at the lower portion of the screen, a gate hingedto said wall to depend within said outlet for normally closing the same,a Wing hinged to said wall above said gate and adapted to swingdownwardly onto the screen, and a link connecting the gate and wing, thewing being raised when the gate is closed, and swinging downwardly ontothe screen when the gate is swung open In testimony that I claim theforegoing as my own, I have hereto aiiixed my signature in the presenceof two witnesses.

Gnonen W, TURNER, Gnonen T, Bnow'n.

